build_ensure_v8_pointer_compression_sandbox_is_enabled_on_64bit.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Samuel Attard <sattard@salesforce.com>
Date: Thu, 7 Jul 2022 14:42:49 -0700
Subject: build: ensure v8 pointer compression + sandbox is enabled on 64bit

Aligns common.gypi with the current build flag state of //v8.

Specifically enables `V8_ENABLE_SANDBOX`, `V8_SANDBOXED_POINTERS`, `V8_COMPRESS_POINTERS` and `V8_COMPRESS_POINTERS_IN_SHARED_CAGE`.

diff --git a/common.gypi b/common.gypi
index fd4e0b38eb6ecf81b23186ec663499d1e685fdf8..e20092d15d5f71f3e90a2ce655d660a8fa1e1385 100644
--- a/common.gypi
+++ b/common.gypi
@@ -66,6 +66,8 @@
     'v8_enable_pointer_compression%': 0,
     'v8_enable_31bit_smis_on_64bit_arch%': 0,
 
+    'v8_enable_sandbox%': 0,
+
     # Disable V8 untrusted code mitigations.
     # See https://github.com/v8/v8/wiki/Untrusted-code-mitigations
     'v8_untrusted_code_mitigations': 0,
@@ -135,6 +137,9 @@
         'v8_enable_pointer_compression': 0,
         'v8_enable_31bit_smis_on_64bit_arch': 0,
       }],
+      ['target_arch in "arm64 x64"', {
+        'v8_enable_sandbox': 0,
+      }],
       ['target_arch in "ppc64 s390x"', {
         'v8_enable_backtrace': 1,
       }],
@@ -394,9 +399,15 @@
       ['v8_enable_pointer_compression == 1', {
         'defines': [
           'V8_COMPRESS_POINTERS',
-          'V8_COMPRESS_POINTERS_IN_ISOLATE_CAGE',
+          'V8_COMPRESS_POINTERS_IN_SHARED_CAGE',
         ],
       }],
+      ['v8_enable_sandbox == 1', {
+        'defines': [
+          'V8_ENABLE_SANDBOX',
+          'V8_SANDBOXED_POINTERS'
+        ]
+      }],
       ['v8_enable_pointer_compression == 1 or v8_enable_31bit_smis_on_64bit_arch == 1', {
         'defines': ['V8_31BIT_SMIS_ON_64BIT_ARCH'],
       }],